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- /* System-specific socket constants and types. Linux version.
- Copyright (C) 1991,1992,1994-2001,2004,2006-2012
- Free Software Foundation, Inc.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
- #ifndef __BITS_SOCKET_H
- #define __BITS_SOCKET_H
- #ifndef _SYS_SOCKET_H
- # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
- #endif
- #define __need_size_t
- #include <stddef.h>
- #include <limits.h>
- #include <sys/types.h>
- /* Type for length arguments in socket calls. */
- #ifndef __socklen_t_defined
- typedef __socklen_t socklen_t;
- # define __socklen_t_defined
- #endif
- /* Get the architecture-dependent definition of enum __socket_type. */
- #include <bits/socket_type.h>
- /* Protocol families. */
- #define PF_UNSPEC 0 /* Unspecified. */
- #define PF_LOCAL 1 /* Local to host (pipes and file-domain). */
- #define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */
- #define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */
- #define PF_INET 2 /* IP protocol family. */
- #define PF_AX25 3 /* Amateur Radio AX.25. */
- #define PF_IPX 4 /* Novell Internet Protocol. */
- #define PF_APPLETALK 5 /* Appletalk DDP. */
- #define PF_NETROM 6 /* Amateur radio NetROM. */
- #define PF_BRIDGE 7 /* Multiprotocol bridge. */
- #define PF_ATMPVC 8 /* ATM PVCs. */
- #define PF_X25 9 /* Reserved for X.25 project. */
- #define PF_INET6 10 /* IP version 6. */
- #define PF_ROSE 11 /* Amateur Radio X.25 PLP. */
- #define PF_DECnet 12 /* Reserved for DECnet project. */
- #define PF_NETBEUI 13 /* Reserved for 802.2LLC project. */
- #define PF_SECURITY 14 /* Security callback pseudo AF. */
- #define PF_KEY 15 /* PF_KEY key management API. */
- #define PF_NETLINK 16
- #define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */
- #define PF_PACKET 17 /* Packet family. */
- #define PF_ASH 18 /* Ash. */
- #define PF_ECONET 19 /* Acorn Econet. */
- #define PF_ATMSVC 20 /* ATM SVCs. */
- #define PF_RDS 21 /* RDS sockets. */
- #define PF_SNA 22 /* Linux SNA Project */
- #define PF_IRDA 23 /* IRDA sockets. */
- #define PF_PPPOX 24 /* PPPoX sockets. */
- #define PF_WANPIPE 25 /* Wanpipe API sockets. */
- #define PF_LLC 26 /* Linux LLC. */
- #define PF_CAN 29 /* Controller Area Network. */
- #define PF_TIPC 30 /* TIPC sockets. */
- #define PF_BLUETOOTH 31 /* Bluetooth sockets. */
- #define PF_IUCV 32 /* IUCV sockets. */
- #define PF_RXRPC 33 /* RxRPC sockets. */
- #define PF_ISDN 34 /* mISDN sockets. */
- #define PF_PHONET 35 /* Phonet sockets. */
- #define PF_IEEE802154 36 /* IEEE 802.15.4 sockets. */
- #define PF_CAIF 37 /* CAIF sockets. */
- #define PF_ALG 38 /* Algorithm sockets. */
- #define PF_NFC 39 /* NFC sockets. */
- #define PF_VSOCK 40 /* vSockets. */
- #define PF_KCM 41 /* Kernel Connection Multiplexor. */
- #define PF_QIPCRTR 42 /* Qualcomm IPC Router. */
- #define PF_SMC 43 /* SMC sockets. */
- #define PF_MAX 44 /* For now.. */
- /* Address families. */
- #define AF_UNSPEC PF_UNSPEC
- #define AF_LOCAL PF_LOCAL
- #define AF_UNIX PF_UNIX
- #define AF_FILE PF_FILE
- #define AF_INET PF_INET
- #define AF_AX25 PF_AX25
- #define AF_IPX PF_IPX
- #define AF_APPLETALK PF_APPLETALK
- #define AF_NETROM PF_NETROM
- #define AF_BRIDGE PF_BRIDGE
- #define AF_ATMPVC PF_ATMPVC
- #define AF_X25 PF_X25
- #define AF_INET6 PF_INET6
- #define AF_ROSE PF_ROSE
- #define AF_DECnet PF_DECnet
- #define AF_NETBEUI PF_NETBEUI
- #define AF_SECURITY PF_SECURITY
- #define AF_KEY PF_KEY
- #define AF_NETLINK PF_NETLINK
- #define AF_ROUTE PF_ROUTE
- #define AF_PACKET PF_PACKET
- #define AF_ASH PF_ASH
- #define AF_ECONET PF_ECONET
- #define AF_ATMSVC PF_ATMSVC
- #define AF_RDS PF_RDS
- #define AF_SNA PF_SNA
- #define AF_IRDA PF_IRDA
- #define AF_PPPOX PF_PPPOX
- #define AF_WANPIPE PF_WANPIPE
- #define AF_LLC PF_LLC
- #define AF_CAN PF_CAN
- #define AF_TIPC PF_TIPC
- #define AF_BLUETOOTH PF_BLUETOOTH
- #define AF_IUCV PF_IUCV
- #define AF_RXRPC PF_RXRPC
- #define AF_ISDN PF_ISDN
- #define AF_PHONET PF_PHONET
- #define AF_IEEE802154 PF_IEEE802154
- #define AF_CAIF PF_CAIF
- #define AF_ALG PF_ALG
- #define AF_NFC PF_NFC
- #define AF_VSOCK PF_VSOCK
- #define AF_KCM PF_KCM
- #define AF_QIPCRTR PF_QIPCRTR
- #define AF_SMC PF_SMC
- #define AF_MAX PF_MAX
- /* Socket level values. Others are defined in the appropriate headers.
- XXX These definitions also should go into the appropriate headers as
- far as they are available. */
- #define SOL_RAW 255
- #define SOL_DECNET 261
- #define SOL_X25 262
- #define SOL_PACKET 263
- #define SOL_ATM 264 /* ATM layer (cell level). */
- #define SOL_AAL 265 /* ATM Adaption Layer (packet level). */
- #define SOL_IRDA 266
- #define SOL_NETBEUI 267
- #define SOL_LLC 268
- #define SOL_DCCP 269
- #define SOL_NETLINK 270
- #define SOL_TIPC 271
- #define SOL_RXRPC 272
- #define SOL_PPPOL2TP 273
- #define SOL_BLUETOOTH 274
- #define SOL_PNPIPE 275
- #define SOL_RDS 276
- #define SOL_IUCV 277
- #define SOL_CAIF 278
- #define SOL_ALG 279
- #define SOL_NFC 280
- #define SOL_KCM 281
- #define SOL_TLS 282
- /* Maximum queue length specifiable by listen. */
- #define SOMAXCONN 128
- /* Get the definition of the macro to define the common sockaddr members. */
- #include <bits/sockaddr.h>
- /* Structure describing a generic socket address. */
- struct sockaddr
- {
- __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */
- char sa_data[14]; /* Address data. */
- };
- /* Structure large enough to hold any socket address (with the historical
- exception of AF_UNIX). We reserve 128 bytes. */
- #if ULONG_MAX > 0xffffffff
- # define __ss_aligntype __uint64_t
- #else
- # define __ss_aligntype __uint32_t
- #endif
- #define _SS_SIZE 128
- #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype)))
- struct sockaddr_storage
- {
- __SOCKADDR_COMMON (ss_); /* Address family, etc. */
- __ss_aligntype __ss_align; /* Force desired alignment. */
- char __ss_padding[_SS_PADSIZE];
- };
- /* Bits in the FLAGS argument to `send', `recv', et al. */
- enum
- {
- MSG_OOB = 0x01, /* Process out-of-band data. */
- #define MSG_OOB MSG_OOB
- MSG_PEEK = 0x02, /* Peek at incoming messages. */
- #define MSG_PEEK MSG_PEEK
- MSG_DONTROUTE = 0x04, /* Don't use local routing. */
- #define MSG_DONTROUTE MSG_DONTROUTE
- #ifdef __USE_GNU
- /* DECnet uses a different name. */
- MSG_TRYHARD = MSG_DONTROUTE,
- # define MSG_TRYHARD MSG_DONTROUTE
- #endif
- MSG_CTRUNC = 0x08, /* Control data lost before delivery. */
- #define MSG_CTRUNC MSG_CTRUNC
- MSG_PROXY = 0x10, /* Supply or ask second address. */
- #define MSG_PROXY MSG_PROXY
- MSG_TRUNC = 0x20,
- #define MSG_TRUNC MSG_TRUNC
- MSG_DONTWAIT = 0x40, /* Nonblocking IO. */
- #define MSG_DONTWAIT MSG_DONTWAIT
- MSG_EOR = 0x80, /* End of record. */
- #define MSG_EOR MSG_EOR
- MSG_WAITALL = 0x100, /* Wait for a full request. */
- #define MSG_WAITALL MSG_WAITALL
- MSG_FIN = 0x200,
- #define MSG_FIN MSG_FIN
- MSG_SYN = 0x400,
- #define MSG_SYN MSG_SYN
- MSG_CONFIRM = 0x800, /* Confirm path validity. */
- #define MSG_CONFIRM MSG_CONFIRM
- MSG_RST = 0x1000,
- #define MSG_RST MSG_RST
- MSG_ERRQUEUE = 0x2000, /* Fetch message from error queue. */
- #define MSG_ERRQUEUE MSG_ERRQUEUE
- MSG_NOSIGNAL = 0x4000, /* Do not generate SIGPIPE. */
- #define MSG_NOSIGNAL MSG_NOSIGNAL
- MSG_MORE = 0x8000, /* Sender will send more. */
- #define MSG_MORE MSG_MORE
- MSG_WAITFORONE = 0x10000, /* Wait for at least one packet to return.*/
- #define MSG_WAITFORONE MSG_WAITFORONE
- MSG_BATCH = 0x40000, /* sendmmsg: more messages coming. */
- #define MSG_BATCH MSG_BATCH
- MSG_ZEROCOPY = 0x4000000, /* Use user data in kernel path. */
- #define MSG_ZEROCOPY MSG_ZEROCOPY
- MSG_FASTOPEN = 0x20000000, /* Send data in TCP SYN. */
- #define MSG_FASTOPEN MSG_FASTOPEN
- MSG_CMSG_CLOEXEC = 0x40000000 /* Set close_on_exit for file
- descriptor received through
- SCM_RIGHTS. */
- #define MSG_CMSG_CLOEXEC MSG_CMSG_CLOEXEC
- };
- /* Structure describing messages sent by
- `sendmsg' and received by `recvmsg'. */
- /* Note: do not change these members to match glibc; these match the
- SuSv3 spec already (e.g. msg_iovlen/msg_controllen).
- http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/socket.h.html */
- /* Note: linux kernel uses __kernel_size_t (which is 8bytes on 64bit
- platforms, and 4bytes on 32bit platforms) for msg_iovlen/msg_controllen */
- struct msghdr
- {
- void *msg_name; /* Address to send to/receive from. */
- socklen_t msg_namelen; /* Length of address data. */
- struct iovec *msg_iov; /* Vector of data to send/receive into. */
- #if __WORDSIZE == 32
- int msg_iovlen; /* Number of elements in the vector. */
- #else
- size_t msg_iovlen; /* Number of elements in the vector. */
- #endif
- void *msg_control; /* Ancillary data (eg BSD filedesc passing). */
- #if __WORDSIZE == 32
- socklen_t msg_controllen; /* Ancillary data buffer length. */
- #else
- size_t msg_controllen; /* Ancillary data buffer length. */
- #endif
- int msg_flags; /* Flags on received message. */
- };
- /* Structure used for storage of ancillary data object information. */
- struct cmsghdr
- {
- size_t cmsg_len; /* Length of data in cmsg_data plus length
- of cmsghdr structure. */
- int cmsg_level; /* Originating protocol. */
- int cmsg_type; /* Protocol specific type. */
- #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
- __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
- #endif
- };
- /* Ancillary data object manipulation macros. */
- #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L
- # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
- #else
- # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
- #endif
- #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
- #define CMSG_FIRSTHDR(mhdr) \
- ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \
- ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) 0)
- #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
- & (size_t) ~(sizeof (size_t) - 1))
- #define CMSG_SPACE(len) (CMSG_ALIGN (len) \
- + CMSG_ALIGN (sizeof (struct cmsghdr)))
- #define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
- extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
- struct cmsghdr *__cmsg) __THROW;
- libc_hidden_proto(__cmsg_nxthdr)
- #ifdef __USE_EXTERN_INLINES
- # ifndef _EXTERN_INLINE
- # define _EXTERN_INLINE __extern_inline
- # endif
- _EXTERN_INLINE struct cmsghdr *
- __NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))
- {
- if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
- /* The kernel header does this so there may be a reason. */
- return (struct cmsghdr *) 0;
- __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg
- + CMSG_ALIGN (__cmsg->cmsg_len));
- if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) __mhdr->msg_control
- + __mhdr->msg_controllen)
- || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)
- > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)))
- /* No more entries. */
- return (struct cmsghdr *) 0;
- return __cmsg;
- }
- #endif /* Use `__extern_inline'. */
- /* Socket level message types. This must match the definitions in
- <linux/socket.h>. */
- enum
- {
- SCM_RIGHTS = 0x01 /* Transfer file descriptors. */
- #define SCM_RIGHTS SCM_RIGHTS
- #ifdef __USE_GNU
- , SCM_CREDENTIALS = 0x02 /* Credentials passing. */
- # define SCM_CREDENTIALS SCM_CREDENTIALS
- #endif
- };
- #ifdef __USE_GNU
- /* User visible structure for SCM_CREDENTIALS message */
- struct ucred
- {
- pid_t pid; /* PID of sending process. */
- uid_t uid; /* UID of sending process. */
- gid_t gid; /* GID of sending process. */
- };
- #endif
- /* Get socket manipulation related informations from kernel headers. */
- #ifndef __GLIBC__
- #define __GLIBC__ 2
- #include <asm/socket.h>
- #undef __GLIBC__
- #else
- #include <asm/socket.h>
- #endif
- /* Structure used to manipulate the SO_LINGER option. */
- struct linger
- {
- int l_onoff; /* Nonzero to linger on close. */
- int l_linger; /* Time to linger. */
- };
- #endif /* bits/socket.h */
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